Employees Retirement System Of Texas Biogen Inc. Transaction History

Employees Retirement System Of Texas

$12.3 Billion
Q2 2025

A detailed history of Employees Retirement System Of Texas transactions in Biogen Inc. stock. As of the latest transaction made, Employees Retirement System Of Texas holds 1,467 shares of BIIB stock, worth $219,477. This represents 0.0% of its overall portfolio holdings.

Number of Shares

1,467

Holding current value

$219,477

% of portfolio

0.0%

23 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 12, 2025	BUY	$113.38 - $135.49 $166,328 - $198,763	1,467 New	1,467 $184,000
Q2 2023 Aug 10, 2023	BUY	$275.25 - $318.06 $9.63 Million - $11.1 Million	35,000 Added 47.95%	108,000 $30.8 Million
Q1 2023 Apr 26, 2023	SELL	$256.56 - $292.34 $6.93 Million - $7.89 Million	-27,000 Reduced 27.0%	73,000 $20.3 Million
Q4 2022 Feb 14, 2023	BUY	$252.44 - $306.72 $3.79 Million - $4.6 Million	15,000 Added 17.65%	100,000 $27.7 Million
Q3 2022 Nov 09, 2022	BUY	$194.69 - $268.46 $10.9 Million - $15.1 Million	56,200 Added 195.14%	85,000 $22.7 Million
Q1 2022 May 13, 2022	BUY	$193.77 - $244.14 $968,850 - $1.22 Million	5,000 Added 21.01%	28,800 $6.07 Million
Q4 2021 Feb 15, 2022	BUY	$223.92 - $287.77 $671,760 - $863,310	3,000 Added 14.42%	23,800 $5.71 Million
Q3 2021 Nov 12, 2021	SELL	$282.99 - $369.05 $594,279 - $775,005	-2,100 Reduced 9.17%	20,800 $5.89 Million
Q2 2021 Aug 10, 2021	SELL	$259.0 - $414.71 $2.31 Million - $3.69 Million	-8,900 Reduced 27.99%	22,900 $7.93 Million
Q1 2021 May 14, 2021	SELL	$242.95 - $284.63 $485,900 - $569,260	-2,000 Reduced 5.92%	31,800 $8.9 Million
Q3 2020 Nov 12, 2020	SELL	$264.77 - $305.71 $529,540 - $611,420	-2,000 Reduced 5.59%	33,800 $9.59 Million
Q2 2020 Aug 12, 2020	BUY	$258.66 - $342.55 $3.88 Million - $5.14 Million	15,000 Added 72.12%	35,800 $9.58 Million
Q4 2019 Feb 10, 2020	SELL	$220.06 - $304.07 $1.32 Million - $1.82 Million	-6,000 Reduced 22.39%	20,800 $6.17 Million
Q3 2019 Nov 12, 2019	SELL	$217.44 - $243.88 $5.7 Million - $6.39 Million	-26,200 Reduced 49.43%	26,800 $6.24 Million
Q2 2019 Aug 14, 2019	SELL	$219.29 - $241.72 $219,290 - $241,720	-1,000 Reduced 1.85%	53,000 $12.4 Million
Q1 2019 May 14, 2019	SELL	$216.71 - $338.96 $3.9 Million - $6.1 Million	-18,000 Reduced 25.0%	54,000 $12.8 Million
Q4 2018 Feb 12, 2019	SELL	$278.5 - $352.75 $389,900 - $493,850	-1,400 Reduced 1.91%	72,000 $21.7 Million
Q3 2018 Nov 13, 2018	BUY	$293.51 - $383.83 $5.78 Million - $7.56 Million	19,700 Added 36.69%	73,400 $25.9 Million
Q2 2018 Aug 10, 2018	SELL	$257.52 - $306.91 $2.06 Million - $2.46 Million	-8,000 Reduced 12.97%	53,700 $15.6 Million
Q1 2018 May 11, 2018	SELL	$260.13 - $367.91 $2.91 Million - $4.12 Million	-11,200 Reduced 15.36%	61,700 $16.9 Million
Q4 2017 Feb 09, 2018	SELL	$307.64 - $344.58 $738,336 - $826,992	-2,400 Reduced 3.19%	72,900 $23.2 Million
Q3 2017 Nov 13, 2017	BUY	$281.15 - $329.69 $702,875 - $824,225	2,500 Added 3.43%	75,300 $23.6 Million
Q2 2017 Aug 14, 2017	BUY	N/A	72,800	72,800 $19.8 Million

Others Institutions Holding BIIB

# of Institutions

1,038

Shares Held

131M

Call Options Held

2.84M

Put Options Held

2.54M

View Full List

About BIOGEN INC.

Ticker BIIB
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—General
Shares Outstandng 144,000,992
Market Cap $21.5B
Description
Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases. The company offers TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; and FUMADERM to treat plaque psoriasis. It also provides BENEPALI, an eta...

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Employees Retirement System Of Texas Biogen Inc. Transaction History